CN106250572B - L-type pipeline erosion rate determines method and device - Google Patents
L-type pipeline erosion rate determines method and device Download PDFInfo
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- CN106250572B CN106250572B CN201510297236.0A CN201510297236A CN106250572B CN 106250572 B CN106250572 B CN 106250572B CN 201510297236 A CN201510297236 A CN 201510297236A CN 106250572 B CN106250572 B CN 106250572B
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Abstract
The invention discloses a kind of L-type pipeline erosion rates to determine method and device, belongs to petroleum technology field, and method includes: to obtain the size of L-type pipeline；Obtain in i-th operation process the aperture of flow control valve on L-type pipeline, flowed through in L-type pipeline starting point pressure and i-th operation process in i-th operation process L-type pipeline fluid quality, i >=1；According to the size of L-type pipeline, maximum erosion rate calculation formula is determined；According to the quality and maximum erosion rate calculation formula of the fluid for flowing through L-type pipeline in L-type pipeline starting point pressure in the aperture of flow control valve on L-type pipeline in i-th operation process, i-th operation process, i-th operation process, the maximum erosion rate of L-type pipeline is determined.The accuracy of the maximum erosion rate for the L-type pipeline that the present invention solves the problems, such as is lower, the effect of the accuracy of the maximum erosion rate of the L-type pipeline improved, and the present invention is used for the determination of L-type pipeline maximum erosion rate.
Description
Technical field
The present invention relates to petroleum technology field, in particular to a kind of L-type pipeline erosion rate determines method and device.
Background technique
L-type pipeline is the Dual-Phrase Distribution of Gas olid pipeline starting point that is connected with equipment to the pipeline shaped like L between throttling element, is being adopted
During carrying out fluid storage and transportation with L-type pipeline, when being flowed in L-type pipeline due to fluid, can on erosion L-type pipeline with fluid
The face of contact, so that being thinned for the wall thickness of L-type pipeline is caused, until the duct wall of L-type pipeline is perforated, so that the peace of L-type pipeline
Full property is lower.Therefore, it is necessary to timely be replaced to L-type pipeline, the duct wall of L-type pipeline is avoided to perforate.
Specifically, the maximum erosion rate of the L-type pipeline can be determined first, then according to the maximum erosion of the L-type pipeline
Rate replaces L-type pipeline.The maximum erosion rate of L-type pipeline are as follows: per second at every square metre during one-stop operation
The pipe workpiece quality that erosion is fallen in inner wall of the pipe.In the maximum erosion rate for determining the L-type pipeline, it is necessary first to obtain field condition
In multiple parameters, the maximum erosion rate of L-type pipeline is then determined according to multiple parameter.Wherein, multiple in field condition
Parameter may include: the shape of L-type pipeline endoparticle and the speed of particle flow.
When obtaining the multiple parameters in field condition, due to the small volume of L-type pipeline endoparticle, can not accurately obtain
The shape of L-type pipeline endoparticle and the speed of particle flow are taken, therefore, according to the shape and particle flow of L-type pipeline endoparticle
The standard of the lower maximum erosion rate to get the L-type pipeline arrived of accuracy of the maximum erosion rate of L-type pipeline determined of speed
True property is lower.
Summary of the invention
In order to which the accuracy of the maximum erosion rate of the L-type pipeline solved the problems, such as is lower, the present invention provides a kind of L
Type pipeline erosion rate determines method and device.The technical solution is as follows:
In a first aspect, providing a kind of L-type pipeline erosion rate determines method, flow control is provided on the L-type pipeline
Valve, which comprises
Obtain the size of the L-type pipeline；
Obtain the aperture of flow control valve on L-type pipeline described in i-th operation process, institute in i-th operation process
State the quality that the fluid of the L-type pipeline is flowed through in L-type pipeline starting point pressure and i-th operation process, i >=1；
According to the size of the L-type pipeline, maximum erosion rate calculation formula is determined；
According to the aperture of flow control valve, the i-th operation on L-type pipeline described in the i-th operation process
In the process the L-type pipeline starting point pressure, flow through in the i-th operation process L-type pipeline fluid quality and institute
Maximum erosion rate calculation formula is stated, determines the maximum erosion rate of L-type pipeline described in the i-th operation process.
Optionally, it presets in maximum erosion rate calculation formula and is provided with multiple variable coefficients, it is described according to the L-type pipeline
Size, determine maximum erosion rate calculation formula, comprising:
It is determined in the default maximum erosion rate calculation formula in multiple variable coefficients according to the size of the L-type pipeline
The value of each variable coefficient；
The value of each variable coefficient is substituted into the default maximum erosion rate calculation formula, determines the most favourable opposition
Erosion rate calculation formula, the default maximum erosion rate calculation formula are as follows:
Wherein, z=C2.6·P0.6；
X is the maximum erosion rate of i-th operation, and C is flow control valve on L-type pipeline described in i-th operation process
Aperture, P is L-type pipeline starting point pressure described in i-th operation process, and z is middle coefficient, and M is to flow in i-th operation process
The quality of the fluid of the L-type pipeline is crossed, a, b, c and d are variable coefficient.
Optionally, after determining the maximum erosion rate of L-type pipeline described in the i-th operation process, the method
Further include:
Obtain operations number in Pipes Density, single operation time and the stage for the L-type pipeline, one rank
The aperture of flow control valve, the L-type pipeline in the size of the L-type pipeline in section in every subjob, the L-type pipeline
Starting point pressure and the quality for the fluid for flowing through the L-type pipeline are all the same；
According to operations number, institute in the Pipes Density of the L-type pipeline, the single operation time and one stage
The maximum erosion rate and thickest reduction amount formula for stating L-type pipeline, determine the thickest of the L-type pipeline in a stage
Reduction amount, the thickest reduction amount formula are as follows:
Wherein, Y is the thickest reduction amount of the L-type pipeline in a stage, and n is operations number in a stage, t
For the single operation time, ρ is the Pipes Density of the L-type pipeline.
Optionally, the size according to the L-type pipeline determines multiple in the default maximum erosion rate calculation formula
The value of each variable coefficient in variable coefficient, comprising:
When the size of the L-type pipeline isWhen, determine the a=0.0127, the b=-0.0087, it is described
C=0.0019, the d=9E-06；
When the size of the L-type pipeline isWhen, determine the a=0.0159, the b=-0.0101,
The c=0.0018, the d=3E-05；
When the size of the L-type pipeline isWhen, determine the a=0.002, the b=-0.0015, the c
=0.0004, the d=1E-06.
Optionally, the n is equal to 1.
Second aspect provides a kind of L-type pipeline erosion rate determining device, is provided with flow control on the L-type pipeline
Valve, the L-type pipeline erosion rate determining device include:
First acquisition unit, for obtaining the size of the L-type pipeline；
Second acquisition unit, for obtain the aperture of flow control valve on L-type pipeline described in i-th operation process,
The matter of the fluid of the L-type pipeline is flowed through in L-type pipeline starting point pressure described in i-th operation process and i-th operation process
Amount, i >=1；
First determination unit determines maximum erosion rate calculation formula for the size according to the L-type pipeline；
Second determination unit, flow control valve opens on the L-type pipeline according to the i-th operation process
L-type pipeline starting point pressure described in degree, the i-th operation process flows through the L-type pipeline in the i-th operation process
Fluid quality and the maximum erosion rate calculation formula, determine the maximum of L-type pipeline described in the i-th operation process
Erosion rate.
Optionally, it presets in maximum erosion rate calculation formula and is provided with multiple variable coefficients, the first determination unit packet
It includes:
First determining module, for determining the default maximum erosion rate calculation formula according to the size of the L-type pipeline
In each variable coefficient in multiple variable coefficients value；
Second determining module calculates public affairs for the value of each variable coefficient to be substituted into the default maximum erosion rate
Formula determines the maximum erosion rate calculation formula, the default maximum erosion rate calculation formula are as follows:
Wherein, z=C2.6·P0.6；
X is the maximum erosion rate of i-th operation, and C is flow control valve on L-type pipeline described in i-th operation process
Aperture, P is L-type pipeline starting point pressure described in i-th operation process, and z is middle coefficient, and M is to flow in i-th operation process
The quality of the fluid of the L-type pipeline is crossed, a, b, c and d are variable coefficient.
Optionally, the L-type pipeline erosion rate determining device further include:
Third acquiring unit is made in Pipes Density, single operation time and the stage for obtaining the L-type pipeline
Industry number, flow control valve in the size of the L-type pipeline in one stage in every subjob, the L-type pipeline
Aperture, the L-type pipeline starting point pressure and flow through the L-type pipeline fluid quality it is all the same；
Third determination unit, for according to the Pipes Density of the L-type pipeline, single operation time and one
Operations number, the maximum erosion rate of the L-type pipeline and thickest reduction amount formula in stage determine described in a stage
The thickest reduction amount of L-type pipeline, the thickest reduction amount formula are as follows:
Wherein, Y is the thickest reduction amount of the L-type pipeline in a stage, and n is operations number in a stage, t
For the single operation time, ρ is the Pipes Density of the L-type pipeline.
Optionally, first determining module is specifically used for:
When the size of the L-type pipeline isWhen, determine the a=0.0127, the b=-0.0087, it is described
C=0.0019, the d=9E-06；
When the size of the L-type pipeline isWhen, determine the a=0.0159, the b=-0.0101,
The c=0.0018, the d=3E-05；
When the size of the L-type pipeline isWhen, determine the a=0.002, the b=-0.0015, the c
=0.0004, the d=1E-06.
Optionally, the n is equal to 1.
The present invention provides a kind of L-type pipeline erosion rates to determine method and device, is made according to the size of L-type pipeline, i-th
The aperture of flow control valve on L-type pipeline, L-type pipeline starting point pressure, i-th operation in i-th operation process during industry
The quality and maximum erosion rate calculation formula for flowing through the fluid of L-type pipeline in the process, determine the maximum erosion rate of L-type pipeline,
Due to L in the aperture of flow control valve on L-type pipeline in the size of L-type pipeline, i-th operation process, i-th operation process
The quality for the fluid for flowing through L-type pipeline in type pipeline starting point pressure, i-th operation process is easier to obtain, can be accurate
The parameters in maximum erosion rate calculation formula are obtained, and then accurately determine the maximum of L-type pipeline according to the parameter of acquisition
Erosion rate, so, the accuracy of the maximum erosion rate of the L-type pipeline improved.
It should be understood that above general description and following detailed description be only it is exemplary and explanatory, not
It can the limitation present invention.
Detailed description of the invention
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing.
Fig. 1 is a kind of structural schematic diagram for L-type pipeline that the prior art provides；
Fig. 2 is the method flow diagram that a kind of L-type pipeline erosion rate provided in an embodiment of the present invention determines method；
Fig. 3 is the method flow diagram that another L-type pipeline erosion rate provided in an embodiment of the present invention determines method；
Fig. 4 is a kind of method flow diagram of determining maximum erosion rate calculation formula provided in an embodiment of the present invention；
Fig. 5 is a kind of structural schematic diagram of L-type pipeline erosion rate determining device provided in an embodiment of the present invention；
Fig. 6 is a kind of structural schematic diagram of first determination unit provided in an embodiment of the present invention；
Fig. 7 is the structural schematic diagram of another L-type pipeline erosion rate determining device provided in an embodiment of the present invention.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with attached drawing to embodiment party of the present invention
Formula is described in further detail.
The embodiment of the invention provides a kind of structural schematic diagrams of L-type pipeline, as shown in Figure 1, the structure and word of L-type pipeline
Female " L " is similar, and is provided with flow control valve 1 on the L-type pipeline, which can be used for controlling the L-type pipe
The flow of the fluid in road.The L-type pipeline can be Dual-Phrase Distribution of Gas olid pipeline.
As shown in Fig. 2, the embodiment of the invention provides a kind of L-type pipeline erosion rates to determine method, the L-type pipeline erosion rate
The method of determination may include:
Step 201, the size for obtaining L-type pipeline.
Step 202 obtains in i-th operation process the aperture of flow control valve, i-th operation process on L-type pipeline
The quality of the fluid of L-type pipeline, i >=1 are flowed through in middle L-type pipeline starting point pressure and i-th operation process.
Step 203, according to the size of L-type pipeline, determine maximum erosion rate calculation formula.
Step 204, according to the aperture of flow control valve, i-th operation process on L-type pipeline in i-th operation process
The quality and maximum erosion rate calculation formula of the fluid of L-type pipeline are flowed through in middle L-type pipeline starting point pressure, i-th operation process,
Determine the maximum erosion rate of L-type pipeline in i-th operation process.
In conclusion since L-type pipeline erosion rate provided in an embodiment of the present invention determines in method, according to L-type pipeline
The aperture of flow control valve on L-type pipeline, L-type pipeline zero pressure in i-th operation process in size, i-th operation process
The quality and maximum erosion rate calculation formula that the fluid of L-type pipeline is flowed through in power, i-th operation process, determine L-type pipeline
Maximum erosion rate, due in the size of L-type pipeline, i-th operation process on L-type pipeline flow control valve aperture, i-th
L-type pipeline starting point pressure in operation process, the quality for the fluid for flowing through L-type pipeline in i-th operation process are easier to obtain,
The parameters in maximum erosion rate calculation formula can be accurately obtained, and then L-type is accurately determined according to the parameter of acquisition
The maximum erosion rate of pipeline, so, the accuracy of the maximum erosion rate of the L-type pipeline improved.
Multiple variable coefficients are provided in default maximum erosion rate calculation formula, step 203 may include: according to L-type pipe
The size in road determines the value of each variable coefficient in default maximum erosion rate calculation formula in multiple variable coefficients；It will be each
The value of variable coefficient substitutes into default maximum erosion rate calculation formula, determines maximum erosion rate calculation formula, presets maximum erosion
Rate calculation formula are as follows:
Wherein, z=C2.6·P0.6,
X is the maximum erosion rate of i-th operation, and C is flow control valve on L-type pipeline described in i-th operation process
Aperture, P is L-type pipeline starting point pressure described in i-th operation process, and z is middle coefficient, and M is to flow in i-th operation process
The quality of the fluid of the L-type pipeline is crossed, a, b, c and d are variable coefficient.
After step 204, the L-type pipeline erosion rate determine method can also include: obtain L-type pipeline tubing it is close
Operations number in degree, single operation time and a stage；According to the Pipes Density of L-type pipeline, single operation time and one
Operations number, the maximum erosion rate of L-type pipeline and thickest reduction amount formula, determine L-type pipeline in a stage in stage
Thickest reduction amount, thickest reduction amount formula are as follows:
Wherein, Y is the thickest reduction amount of L-type pipeline in a stage, and n is operations number in a stage, and t is single
Subjob time, ρ are the Pipes Density of L-type pipeline.
Determine that each of multiple variable coefficients are variable in default maximum erosion rate calculation formula according to the size of L-type pipeline
The value of coefficient may include: when the size of L-type pipeline isWhen, determine a=0.0127, b=-0.0087, c=
0.0019, d=9E-06；When the size of L-type pipeline isWhen, determine a=0.0159, b=-0.0101, c=
0.0018, d=3E-05；When the size of L-type pipeline isWhen, determine a=0.002, b=-0.0015, c=
0.0004, d=1E-06.
In conclusion since L-type pipeline erosion rate provided in an embodiment of the present invention determines in method, according to L-type pipeline
The aperture of flow control valve on L-type pipeline, L-type pipeline zero pressure in i-th operation process in size, i-th operation process
The quality and maximum erosion rate calculation formula that the fluid of L-type pipeline is flowed through in power, i-th operation process, determine L-type pipeline
Maximum erosion rate, due in the size of L-type pipeline, i-th operation process on L-type pipeline flow control valve aperture, i-th
L-type pipeline starting point pressure in operation process, the quality for the fluid for flowing through L-type pipeline in i-th operation process are easier to obtain,
The parameters in maximum erosion rate calculation formula can be accurately obtained, and then L-type is accurately determined according to the parameter of acquisition
The maximum erosion rate of pipeline, so, the accuracy of the maximum erosion rate of the L-type pipeline improved.
As shown in figure 3, the embodiment of the invention provides another L-type pipeline erosion rates to determine method, the L-type pipeline erosion
Rate determines that method may include:
Step 301, the size for obtaining L-type pipeline.
Specifically, the ruler of the L-type pipeline can be obtained by query facility archives before the L-type pipeline carries out operation
Very little, the size of the L-type pipeline may include the nominal diameter of L-type pipeline.Specifically, nominal diameter (English: Diameter
Nominal；It referred to as: DN) is also known as mean outside diameter, refers to and standardizes later normal diameter, unit is millimeter.The L-type pipeline
It can be L-type sewage pipe, if the size of L-type sewage pipe is DN80 (φ 88.9 × 4), that is, indicate that the nominal of the L-type sewage pipe is straight
Diameter is 80 millimeters, and the outer diameter of the L-type sewage pipe is 88.9 millimeters, and the wall thickness of the L-type sewage pipe is 4 millimeters.
Step 302 obtains in i-th operation process the aperture of flow control valve, i-th operation process on L-type pipeline
The quality of the fluid of L-type pipeline, i >=1 are flowed through in middle L-type pipeline starting point pressure and i-th operation process.
It is exemplary, the flow control valve on the L-type pipeline can be opened to default during i-th operation and be opened
Degree, and the aperture of flow control valve on the L-type pipeline is obtained, at this point, the L-type pipe obtained during the i-th operation
The default aperture that the L-type pipeline is opened before aperture, that is, operation of flow control valve on road.Exemplary, which can be with
For any one aperture between 20%~50%.Pressure gauge can be placed in the L pipe during L pipeline i-th operation
In road, the acquisition of the L pipeline starting point pressure in operation process is carried out, the L in operation process can also be obtained by other means
Pipeline starting point pressure, it is not limited in the embodiment of the present invention.Obtain the fluid that L-type pipeline is flowed through in i-th operation process
The method of quality can be with reference to the method for the quality for the fluid for flowing through pipeline during acquisition one-stop operation in the prior art, this hair
Bright embodiment does not repeat them here again.Optionally, i=1 obtains flow control on L-type pipeline during the first subjob
The fluid of L-type pipeline is flowed through in the aperture of valve, first time operation process in L-type pipeline starting point pressure and first time operation process
Quality.It should be noted that flowing through L-type pipeline in i-th operation process when the L-type pipeline is Dual-Phrase Distribution of Gas olid pipeline
Fluid quality be i-th operation process in flow through L-type pipeline solid quality.
Step 303, according to the size of L-type pipeline, determine maximum erosion rate calculation formula.
As shown in figure 4, step 303 may include:
Step 3031 determines in default maximum erosion rate calculation formula in multiple variable coefficients according to the size of L-type pipeline
Each variable coefficient value.
Specifically, multiple variable coefficients can be set in default maximum erosion rate calculation formula, the default maximum erosion
Rate calculation formula are as follows:
Wherein, z=C2.6·P0.6,
X is the maximum erosion rate of i-th operation, unit kg/m2S (kilograms per square meter is per second)；C is i-th work
During industry on L-type pipeline flow control valve aperture；P is L-type pipeline starting point pressure in i-th operation process, and unit is
MPa (megapascal)；Z is middle coefficient；M is the quality that the fluid of L-type pipeline is flowed through in i-th operation process, and unit is kg (thousand
Gram)；A, b, c and d are variable coefficient.
It is exemplary, when the size of L-type pipeline is DN80When, i.e., when the nominal diameter of L-type pipeline is 80 millis
Meter Shi determines a=0.0127, b=-0.0087, c=0.0019, d=9E-06；
When the size of L-type pipeline is DN100When, i.e., when the nominal diameter of L-type pipeline is 100 millimeters
When, determine a=0.0159, b=-0.0101, c=0.0018, d=3E-05；
When the size of L-type pipeline is DN150When, i.e., when the nominal diameter of L-type pipeline is 150 millimeters,
Determine a=0.002, b=-0.0015, c=0.0004, d=1E-06.
It should be noted that -6 powers of the 9E-06 expression 9 multiplied by 10, i.e., 9 × 10-6.3E-05 is indicated 3 multiplied by -5 times of 10
Side, i.e., 3 × 10-5.1E-06 indicate 1 multiplied by 10-6 powers, i.e., 1 × 10-6。
The value of each variable coefficient is substituted into default maximum erosion rate calculation formula by step 3032, determines maximum erosion
Rate calculation formula.
Specifically, can be by the value of each variable coefficient determined in step 3031, the i.e. value of a, b, c and d generation respectively
Enter in the default maximum erosion rate formula, so that it is determined that maximum erosion rate calculation formula.
It is exemplary, when the size of L-type pipeline is DN80, a=0.0127, b=-0.0087, c=
When 0.0019, d=9E-06, the value of a, b, c and the d are substituted into respectively in the default maximum erosion rate formula, the most favourable opposition determined
Erosion rate calculation formula are as follows:
When the size of L-type pipeline is DN100, a=0.0159, b=-0.0101, c=0.0018, d
When=3E-05, the value of a, b, c and the d are substituted into respectively in the default maximum erosion rate formula, the maximum erosion rate determined calculates
Formula are as follows:
When the size of L-type pipeline is DN150, a=0.002, b=-0.0015, c=0.0004, d=1E-
When 06, the value of a, b, c and the d are substituted into respectively in the default maximum erosion rate formula, the maximum erosion rate calculation formula determined
Are as follows:
Step 304, according to the aperture of flow control valve, i-th operation process on L-type pipeline in i-th operation process
The quality and maximum erosion rate calculation formula of the fluid of L-type pipeline are flowed through in middle L-type pipeline starting point pressure, i-th operation process,
Determine the maximum erosion rate of L-type pipeline.
Aperture, i-th due to obtaining flow control valve on L-type pipeline in i-th operation process in step 302 are made
The quality of the fluid of L-type pipeline is flowed through during industry in L-type pipeline starting point pressure and i-th operation process；It is determined in step 303
Maximum erosion rate calculation formula therefore can be by the aperture of flow control valve, on L-type pipeline in i-th operation process
The quality for flowing through the fluid of L-type pipeline during i subjob in L-type pipeline starting point pressure and i-th operation process substitutes into step
In the maximum erosion rate formula determined in 303, the maximum erosion rate of L-type pipeline is obtained.
Wherein, the z=C in the maximum erosion rate formula2.6·P0.6, x is the maximum erosion rate of i-th operation, and unit is
kg/m2·s；C is the aperture of flow control valve on L-type pipeline in i-th operation process；P is L-type in i-th operation process
Pipeline starting point pressure, unit MPa；Z is middle coefficient；M is the quality that the fluid of L-type pipeline is flowed through in i-th operation process,
Unit is kg.
Operations number in step 305, the Pipes Density for obtaining L-type pipeline, single operation time and a stage.
In i-th operation process has been determined after the maximum erosion rate of L-type pipeline, in an available stage, L-type
The Pipes Density and single operation time of operations number and L-type pipeline in one stage of pipeline.It should be noted that one
L-type pipeline can carry out multiple operation in a stage, and the parameters condition in every subjob is all the same, i.e. the ruler of L pipeline
Very little, L-type pipeline Pipes Density, single operation time, the aperture of flow control valve on L-type pipeline in each operation process,
The quality for the fluid for flowing through L-type pipeline in L-type pipeline starting point pressure and each operation process in each operation process is all the same.Show
Example, the Pipes Density and single of operations number and L-type pipeline are made in a stage of L-type pipeline in available 1 year
The industry time.
Step 306, according to operations number, L-type pipe in the Pipes Density of L-type pipeline, single operation time and a stage
The maximum erosion rate and thickest reduction amount formula in road, determine the thickest reduction amount of L-type pipeline in a stage.
It can be by operation in the Pipes Density of the L-type pipeline obtained in step 305, single operation time and a stage time
The maximum erosion rate of the L-type pipeline determined in several and step 304 substitutes into thickest reduction amount formula, obtains in a stage
The thickest reduction amount of the L-type pipeline.Specifically, the thickest reduction amount formula are as follows:
Wherein, Y is the thickest reduction amount of L-type pipeline in a stage, and unit is millimeter, is 1 year when a stage
When, Y indicates the thickness of the thickest reduction of annual L-type pipeline；N is operations number in a stage；X is i-th operation
Maximum erosion rate, unit kg/m2·s；T is the single operation time, and unit is min (minute), and exemplary, t can be equal to
6min, time needed for indicating the one-stop operation of L pipeline are 6 minutes；ρ is the Pipes Density of L-type pipeline, unit kg/m3, example
Such as, the Pipes Density of the steel L-type pipeline of L245 and L360 model is equal to 7850kg/m3。
Further, it when the n in the thickest reduction amount formula is equal to 1, has i.e. only been carried out in a stage primary
Operation, the thickest reduction amount of the L-type pipeline is that wall thickness subtracts in the L-type pipeline one-stop operation in the stage determined at this time
Few maximum gauge.
Exemplary, L-type sewage pipe is a kind of L-type pipeline, using L-type pipeline erosion rate provided by the embodiment of the present invention
It determines method, the L-type sewage pipe of A Gas Stations and B Gas Stations is tested respectively, it is determined that A Gas Stations and B are defeated
The maximum erosion rate of the L-type sewage pipe one-stop operation of gas yard and in a stage L-type sewage pipe thickest reduce
Amount.
Specifically, obtaining the aperture C of flow control valve on L-type pipeline in i-th operation process in A Gas Stations
It is 30%, L-type pipeline starting point pressure P is to flow through L-type pipeline in 3.5MPa and i-th operation process in i-th operation process
The mass M of fluid is 3kg, and the size of L-type pipeline is DN100, the Pipes Density ρ of L-type pipeline is
7850kg/m3, the single operation time be 6min, in a stage operations number n be 32 times.First according to the ruler of the L-type pipeline
Very little and default maximum erosion rate formula, determines maximum erosion rate calculation formula；Then according to L-type pipeline in i-th operation process
L-type pipeline starting point pressure in the aperture of upper flow control valve, i-th operation process flows through L-type pipe in i-th operation process
The quality of the fluid in road and maximum erosion rate calculation formula, determine the maximum erosion rate of L-type pipeline；Finally according to L-type pipeline
The maximum erosion rate and thickest reduction amount of operations number, L-type pipeline in Pipes Density, single operation time and a stage
Formula determines that the thickest reduction amount of L-type pipeline in the stage is 0.59 millimeter.
In B Gas Stations, the aperture C for obtaining flow control valve on L-type pipeline in i-th operation process is 30%,
L-type pipeline starting point pressure P is the fluid that L-type pipeline is flowed through in 3.5MPa and i-th operation process in i-th operation process
Mass M is 3kg, and the size of L-type pipeline is DN80, the Pipes Density ρ of L-type pipeline is 7850kg/m3, single make
The industry time is 6min, and operations number n is 32 times in a stage.First according to the size of the L-type pipeline and default maximum erosion
Rate formula determines maximum erosion rate calculation formula；Then according to flow control valve on L-type pipeline in i-th operation process
L-type pipeline starting point pressure in aperture, i-th operation process, flowed through in i-th operation process L-type pipeline fluid quality and
Maximum erosion rate calculation formula determines the maximum erosion rate of L-type pipeline；Finally according to the Pipes Density of L-type pipeline, single operation
Operations number, the maximum erosion rate of L-type pipeline and thickest reduction amount formula, determined in the stage in time and a stage
The thickest reduction amount of L-type pipeline is 1.00 millimeters.
Further, the erosion using the determination method of L-type pipeline erosion rate provided in an embodiment of the present invention to L-type pipeline
Rate is determined, and can accurately determine the erosion rate of the L-type pipeline, which can be Dual-Phrase Distribution of Gas olid pipeline, is realized
Pipe perforation or natural gas leaking etc. are avoided by the real time monitoring of erosion degree to Dual-Phrase Distribution of Gas olid pipeline in production scene
Influence the generation of the event of safety in production.
In conclusion since L-type pipeline erosion rate provided in an embodiment of the present invention determines in method, according to L-type pipeline
The aperture of flow control valve on L-type pipeline, L-type pipeline zero pressure in i-th operation process in size, i-th operation process
The quality and maximum erosion rate calculation formula that the fluid of L-type pipeline is flowed through in power, i-th operation process, determine L-type pipeline
Maximum erosion rate, due in the size of L-type pipeline, i-th operation process on L-type pipeline flow control valve aperture, i-th
L-type pipeline starting point pressure in operation process, the quality for the fluid for flowing through L-type pipeline in i-th operation process are easier to obtain,
The parameters in maximum erosion rate calculation formula can be accurately obtained, and then L-type is accurately determined according to the parameter of acquisition
The maximum erosion rate of pipeline, so, the accuracy of the maximum erosion rate of the L-type pipeline improved.
As shown in figure 5, it is used for L-type pipeline the embodiment of the invention provides a kind of L-type pipeline erosion rate determining device 50,
It is provided with flow control valve on the L-type pipeline, which may include:
First acquisition unit 501, for obtaining the size of L-type pipeline.
Second acquisition unit 502, for obtaining in i-th operation process the aperture of flow control valve, on L-type pipeline
The quality of the fluid of L-type pipeline, i >=1 are flowed through during i subjob in L-type pipeline starting point pressure and i-th operation process.
First determination unit 503 determines maximum erosion rate calculation formula for the size according to L-type pipeline.
Second determination unit 504, for according to the aperture of flow control valve, on L-type pipeline in i-th operation process
L-type pipeline starting point pressure during i subjob, flowed through in i-th operation process L-type pipeline fluid quality and maximum erosion
Rate calculation formula determines the maximum erosion rate of L-type pipeline in i-th operation process.
In conclusion due in L-type pipeline erosion rate determining device provided in an embodiment of the present invention, the first determination unit and
Second determination unit is according to the aperture of flow control valve, i-th on L-type pipeline in the size of L-type pipeline, i-th operation process
L-type pipeline starting point pressure during subjob, flowed through in i-th operation process L-type pipeline fluid quality and most favourable opposition
Erosion rate calculation formula determines the maximum erosion rate of L-type pipeline, due to L-type pipeline in the size of L-type pipeline, i-th operation process
L-type pipeline starting point pressure in the aperture of upper flow control valve, i-th operation process flows through L-type pipe in i-th operation process
The quality of the fluid in road is easier to obtain, and can accurately obtain the parameters in maximum erosion rate calculation formula, in turn
The maximum erosion rate of L-type pipeline is accurately determined according to the parameter of acquisition, so, the most favourable opposition of the L-type pipeline improved
The accuracy of erosion rate.
Optionally, it presets in maximum erosion rate calculation formula and is provided with multiple variable coefficients, as shown in fig. 6, this is first really
Order member 503 may include:
First determining module 5031 is more in default maximum erosion rate calculation formula for being determined according to the size of L-type pipeline
The value of each variable coefficient in a variable coefficient.
Second determining module 5032, for the value of each variable coefficient to be substituted into default maximum erosion rate calculation formula,
It determines maximum erosion rate calculation formula, presets maximum erosion rate calculation formula are as follows:
Wherein, z=C2.6·P0.6,
X is the maximum erosion rate of i-th operation, and C is that flow control valve is opened on L-type pipeline in i-th operation process
Degree, P are L-type pipeline starting point pressure in i-th operation process, and z is middle coefficient, and M is to flow through L-type pipe in i-th operation process
The quality of the fluid in road, a, b, c and d are variable coefficient.
First determining module 5031 is specifically used for:
When the size of L-type pipeline isWhen, determine a=0.0127, b=-0.0087, c=0.0019, d=9E-
06。
When the size of L-type pipeline isWhen, determine a=0.0159, b=-0.0101, c=0.0018, d=
3E-05。
When the size of L-type pipeline isWhen, determine a=0.002, b=-0.0015, c=0.0004, d=1E-
06。
In conclusion due in L-type pipeline erosion rate determining device provided in an embodiment of the present invention, the first determination unit and
Second determination unit is according to the aperture of flow control valve, i-th on L-type pipeline in the size of L-type pipeline, i-th operation process
L-type pipeline starting point pressure during subjob, flowed through in i-th operation process L-type pipeline fluid quality and most favourable opposition
Erosion rate calculation formula determines the maximum erosion rate of L-type pipeline, due to L-type pipeline in the size of L-type pipeline, i-th operation process
L-type pipeline starting point pressure in the aperture of upper flow control valve, i-th operation process flows through L-type pipe in i-th operation process
The quality of the fluid in road is easier to obtain, and can accurately obtain the parameters in maximum erosion rate calculation formula, in turn
The maximum erosion rate of L-type pipeline is accurately determined according to the parameter of acquisition, so, the most favourable opposition of the L-type pipeline improved
The accuracy of erosion rate.
As shown in fig. 7, being used for L-type pipe the embodiment of the invention provides another L-type pipeline erosion rate determining device 50
Road is provided with flow control valve on the L-type pipeline, which may include:
First acquisition unit 501, for obtaining the size of L-type pipeline.
Second acquisition unit 502, for obtaining in i-th operation process the aperture of flow control valve, on L-type pipeline
The quality of the fluid of L-type pipeline, i >=1 are flowed through during i subjob in L-type pipeline starting point pressure and i-th operation process.
First determination unit 503 determines maximum erosion rate calculation formula for the size according to L-type pipeline.
Second determination unit 504, for according to the aperture of flow control valve, on L-type pipeline in i-th operation process
L-type pipeline starting point pressure during i subjob, flowed through in i-th operation process L-type pipeline fluid quality and maximum erosion
Rate calculation formula determines the maximum erosion rate of L-type pipeline in i-th operation process.
Third acquiring unit 505 is made in Pipes Density, single operation time and the stage for obtaining L-type pipeline
Industry number, the aperture of flow control valve, L-type pipe in the size of the L-type pipeline in a stage in every subjob, L-type pipeline
Road starting point pressure and the quality for the fluid for flowing through L-type pipeline are all the same.
Third determination unit 506, for according to making in the Pipes Density of L-type pipeline, single operation time and a stage
Industry number, the maximum erosion rate of L-type pipeline and thickest reduction amount formula, determine the maximum wall of L-type pipeline in a stage
Thick reduction amount, thickest reduction amount formula are as follows:
Wherein, Y is the thickest reduction amount of L-type pipeline in a stage, and n is operations number in a stage, and t is single
Subjob time, ρ are the Pipes Density of L-type pipeline.Optionally, n is equal to 1.
In conclusion due in L-type pipeline erosion rate determining device provided in an embodiment of the present invention, the first determination unit and
Second determination unit is according to the aperture of flow control valve, i-th on L-type pipeline in the size of L-type pipeline, i-th operation process
L-type pipeline starting point pressure during subjob, flowed through in i-th operation process L-type pipeline fluid quality and most favourable opposition
Erosion rate calculation formula determines the maximum erosion rate of L-type pipeline, due to L-type pipeline in the size of L-type pipeline, i-th operation process
L-type pipeline starting point pressure in the aperture of upper flow control valve, i-th operation process flows through L-type pipe in i-th operation process
The quality of the fluid in road is easier to obtain, and can accurately obtain the parameters in maximum erosion rate calculation formula, in turn
The maximum erosion rate of L-type pipeline is accurately determined according to the parameter of acquisition, so, the most favourable opposition of the L-type pipeline improved
The accuracy of erosion rate.
Those of ordinary skill in the art will appreciate that realizing that all or part of the steps of above-described embodiment can pass through hardware
It completes, relevant hardware can also be instructed to complete by program, the program can store in a kind of computer-readable
In storage medium, storage medium mentioned above can be read-only memory, disk or CD etc..
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all in spirit of the invention and
Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (8)
1. a kind of L-type pipeline erosion rate determines method, which is characterized in that be provided with flow control valve on the L-type pipeline, institute
The method of stating includes:
Obtain the size of the L-type pipeline；
Obtain the aperture of flow control valve on L-type pipeline described in i-th operation process, L-type described in i-th operation process
The quality of the fluid of the L-type pipeline, i >=1 are flowed through in pipeline starting point pressure and i-th operation process；
According to the size of the L-type pipeline, maximum erosion rate calculation formula is determined；
According to the aperture of flow control valve, the i-th operation process on L-type pipeline described in the i-th operation process
Described in L-type pipeline starting point pressure, flow through in the i-th operation process L-type pipeline fluid quality and it is described most
Big erosion rate calculation formula, determines the maximum erosion rate of L-type pipeline described in the i-th operation process；
Multiple variable coefficients are provided in default maximum erosion rate calculation formula, the size according to the L-type pipeline determines
Maximum erosion rate calculation formula, comprising:
Each of multiple variable coefficients in the default maximum erosion rate calculation formula are determined according to the size of the L-type pipeline
The value of variable coefficient；
The value of each variable coefficient is substituted into the default maximum erosion rate calculation formula, determines the maximum erosion rate
Calculation formula, the default maximum erosion rate calculation formula are as follows:
Wherein, z=C2.6·P0.6；
X is the maximum erosion rate of i-th operation, and C is that flow control valve is opened on L-type pipeline described in i-th operation process
Degree, P are L-type pipeline starting point pressure described in i-th operation process, and z is middle coefficient, and M is flows through institute in i-th operation process
The quality of the fluid of L-type pipeline is stated, a, b, c and d are variable coefficient.
2. L-type pipeline erosion rate according to claim 1 determines method, which is characterized in that determining the i-th operation
In the process after the maximum erosion rate of the L-type pipeline, the method also includes:
Operations number in Pipes Density, single operation time and the stage for the L-type pipeline is obtained, in one stage
Aperture, the L-type pipeline starting point of flow control valve in the size of the L-type pipeline in every subjob, the L-type pipeline
Pressure and the quality for the fluid for flowing through the L-type pipeline are all the same；
According to operations number, the L in the Pipes Density of the L-type pipeline, the single operation time and one stage
The maximum erosion rate and thickest reduction amount formula of type pipeline, determine that the thickest of the L-type pipeline in a stage subtracts
On a small quantity, the thickest reduction amount formula are as follows:
Wherein, Y is the thickest reduction amount of the L-type pipeline in a stage, and n is operations number in a stage, and t is single
Subjob time, ρ are the Pipes Density of the L-type pipeline.
3. L-type pipeline erosion rate according to claim 1 or 2 determines method, which is characterized in that
The size according to the L-type pipeline determines in the default maximum erosion rate calculation formula in multiple variable coefficients
The value of each variable coefficient, comprising:
When the outer diameter of the L-type pipeline is 88.9 millimeters, and wall thickness is 4 millimeters, the a=0.0127, the b=- are determined
0.0087, the c=0.0019, the d=9E-06；
When the outer diameter of the L-type pipeline is 114.3 millimeters, and wall thickness is 4.5 millimeters, the a=0.0159, the b=- are determined
0.0101, the c=0.0018, the d=3E-05；
When the outer diameter of the L-type pipeline is 159 millimeters, and wall thickness is 5 millimeters, the a=0.002, the b=- are determined
0.0015, the c=0.0004, the d=1E-06.
4. L-type pipeline erosion rate according to claim 2 determines method, which is characterized in that
The n is equal to 1.
5. a kind of L-type pipeline erosion rate determining device, which is characterized in that be provided with flow control valve on the L-type pipeline, institute
Stating L-type pipeline erosion rate determining device includes:
First acquisition unit, for obtaining the size of the L-type pipeline；
Second acquisition unit, for obtaining the aperture, i-th of flow control valve on L-type pipeline described in i-th operation process
The quality of the fluid of the L-type pipeline, institute are flowed through in the starting point of L-type pipeline described in operation process pressure and i-th operation process
State i >=1；
First determination unit determines maximum erosion rate calculation formula for the size according to the L-type pipeline；
Second determination unit, on the L-type pipeline according to the i-th operation process aperture of flow control valve,
L-type pipeline starting point pressure described in the i-th operation process, the stream that the L-type pipeline is flowed through in the i-th operation process
The quality of body and the maximum erosion rate calculation formula, determine the maximum erosion of L-type pipeline described in the i-th operation process
Rate；
Multiple variable coefficients are provided in default maximum erosion rate calculation formula, first determination unit includes:
First determining module is more in the default maximum erosion rate calculation formula for being determined according to the size of the L-type pipeline
The value of each variable coefficient in a variable coefficient；
Second determining module, for the value of each variable coefficient to be substituted into the default maximum erosion rate calculation formula,
Determine the maximum erosion rate calculation formula, the default maximum erosion rate calculation formula are as follows:
Wherein, z=C2.6·P0.6；
X is the maximum erosion rate of i-th operation, and C is that flow control valve is opened on L-type pipeline described in i-th operation process
Degree, P are L-type pipeline starting point pressure described in i-th operation process, and z is middle coefficient, and M is flows through institute in i-th operation process
The quality of the fluid of L-type pipeline is stated, a, b, c and d are variable coefficient.
6. L-type pipeline erosion rate determining device according to claim 5, which is characterized in that the L-type pipeline erosion rate is true
Determine device further include:
Third acquiring unit, operation time in Pipes Density, single operation time and the stage for obtaining the L-type pipeline
Number, flow control valve opens in the size of the L-type pipeline in one stage in every subjob, the L-type pipeline
Degree, the L-type pipeline starting point pressure and flow through the L-type pipeline fluid quality it is all the same；
Third determination unit, for according to the Pipes Density of the L-type pipeline, the single operation time and one stage
Interior operations number, the maximum erosion rate of the L-type pipeline and thickest reduction amount formula, determine the L-type in a stage
The thickest reduction amount of pipeline, the thickest reduction amount formula are as follows:
Wherein, Y is the thickest reduction amount of the L-type pipeline in a stage, and n is operations number in a stage, and t is single
Subjob time, ρ are the Pipes Density of the L-type pipeline.
7. L-type pipeline erosion rate determining device according to claim 5 or 6, which is characterized in that
First determining module is specifically used for:
When the outer diameter of the L-type pipeline is 88.9 millimeters, and wall thickness is 4 millimeters, the a=0.0127, the b=- are determined
0.0087, the c=0.0019, the d=9E-06；
When the outer diameter of the L-type pipeline is 114.3 millimeters, and wall thickness is 4.5 millimeters, the a=0.0159, the b=- are determined
0.0101, the c=0.0018, the d=3E-05；
When the outer diameter of the L-type pipeline is 159 millimeters, and wall thickness is 5 millimeters, the a=0.002, the b=- are determined
0.0015, the c=0.0004, the d=1E-06.
8. L-type pipeline erosion rate determining device according to claim 6, which is characterized in that
The n is equal to 1.
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| CN203159543U (en) * | 2013-02-08 | 2013-08-28 | 神华集团有限责任公司 | Wear-resisting structure of easily-washed-out part of direct coal liquefaction device |
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| CN203159543U (en) * | 2013-02-08 | 2013-08-28 | 神华集团有限责任公司 | Wear-resisting structure of easily-washed-out part of direct coal liquefaction device |
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